REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
BlackRock, Inc.6,619,271$1,084,634
VANGUARD GROUP INC4,993,945$818,308
PRICE T ROWE ASSOCIATES INC /MD/4,599,061$754
FMR LLC2,867,846$469,925
UNITED CAPITAL FINANCIAL ADVISORS, LLC2,770,862$454,033
STATE STREET CORP1,719,093$281,691
CITADEL ADVISORS LLC1,394,252$228,462
Bank of New York Mellon Corp1,344,706$220,344
Invesco Ltd.1,256,439$205,880
MASSACHUSETTS FINANCIAL SERVICES CO /MA/1,215,527$199,176
FRANKLIN RESOURCES INC1,101,447$180,483
RTW INVESTMENTS, LP1,064,000$174,347
Conestoga Capital Advisors, LLC1,057,975$173,360
GEODE CAPITAL MANAGEMENT, LLC1,029,817$168,779
Point72 Asset Management, L.P.1,006,310$164,894
Champlain Investment Partners, LLC1,003,951$164,507
ALLIANCEBERNSTEIN L.P.994,869$163,019
Holocene Advisors, LP961,040$157,476
FRED ALGER MANAGEMENT, LLC911,527$149,363
DIMENSIONAL FUND ADVISORS LP804,410$131,821
CONGRESS ASSET MANAGEMENT CO /MA746,306$122,290
Stephens Investment Management Group LLC657,111$107,674
MILLENNIUM MANAGEMENT LLC650,546$106,598
MORGAN STANLEY570,977$93,561
GENEVA CAPITAL MANAGEMENT LLC562,975$92,249
BAMCO INC /NY/544,779$89,267
Voya Investment Management LLC521,158$85,397
MARSHALL WACE, LLP516,336$84,607
DF DENT & CO INC495,550$81,201
AMERIPRISE FINANCIAL INC494,225$80,984
NORGES BANK462,094$75,719
NORTHERN TRUST CORP446,148$73,106
SCHRODER INVESTMENT MANAGEMENT GROUP443,934$72,743
TimesSquare Capital Management, LLC435,687$71,392
CHARLES SCHWAB INVESTMENT MANAGEMENT INC430,704$70,575
Walleye Capital LLC417,110$68,348
Impax Asset Management Group plc413,384$67,737
Thrivent Financial for Lutherans411,706$67
Artemis Investment Management LLP410,369$67,243
BANK OF AMERICA CORP /DE/397,229$65,090
UBS Group AG348,388$57,087
AMERICAN CAPITAL MANAGEMENT INC335,115$54,912
BNP Paribas Investment Partners S.A.323,821$53
Iron Triangle Partners LP320,474$52,513
PERCEPTIVE ADVISORS LLC315,541$51,705
RIVERBRIDGE PARTNERS LLC313,365$51,348
Allspring Global Investments Holdings, LLC311,175$51,142
Blue Whale Capital LLP308,467$50,545
GOLDMAN SACHS GROUP INC295,271$48,383
FIRST TRUST ADVISORS LP282,776$46,336
BROWN CAPITAL MANAGEMENT LLC273,972$44,893
AMERICAN CENTURY COMPANIES INC250,273$41,010
JPMORGAN CHASE & CO248,937$40,791
12 West Capital Management LP241,233$39,528
PALISADE CAPITAL MANAGEMENT, LP232,196$38,048
Baird Financial Group, Inc.205,605$33,690
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.204,863$33,569
NZS Capital, LLC198,803$32,576
PRINCIPAL FINANCIAL GROUP INC198,204$32,478
Artisan Partners Limited Partnership193,697$31,739
Nuveen, LLC192,688$31,574
PRIMECAP MANAGEMENT CO/CA/186,668$30,587
SEI INVESTMENTS CO181,988$29,821
NEW YORK STATE COMMON RETIREMENT FUND171,010$28,022
RAYMOND JAMES FINANCIAL INC168,874$27,878
UBS ASSET MANAGEMENT AMERICAS INC164,354$26,931
Ranger Investment Management, L.P.162,450$26,619
BARCLAYS PLC159,152$26,079
MOORE CAPITAL MANAGEMENT, LP150,000$24,579
LOOMIS SAYLES & CO L P149,777$24,542
COMERICA BANK149,083$24,429
SEGALL BRYANT & HAMILL, LLC146,980$24,084
ROYCE & ASSOCIATES LP146,973$24,083
ROYAL BANK OF CANADA143,326$23,485
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO134,571$22
RHUMBLINE ADVISERS134,110$21,975
Daiwa Securities Group Inc.130,277$21
JENNISON ASSOCIATES LLC123,600$20,253
Curi Capital, LLC117,936$19,325
BALYASNY ASSET MANAGEMENT L.P.115,053$18,853
AGF MANAGEMENT LTD111,612$18,289
VICTORY CAPITAL MANAGEMENT INC109,081$17,874
Swiss National Bank105,400$17,271
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY101,945$17
Ensign Peak Advisors, Inc101,209$16,584
ENVESTNET ASSET MANAGEMENT INC101,112$16,568
LORD, ABBETT & CO. LLC90,244$15
OSAIC HOLDINGS, INC.89,978$14,744
NORTH STAR ASSET MANAGEMENT INC84,903$13,912
KORNITZER CAPITAL MANAGEMENT INC /KS83,780$13,728
CITIGROUP INC83,752$13,724
Vestal Point Capital, LP83,000$13,600
BRAIDWELL LP81,790$13,402
Legal & General Group Plc78,803$12,913
BNP PARIBAS ARBITRAGE, SA74,042$12,133
Granahan Investment Management, LLC72,002$11,798
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM70,115$11,489
WCM INVESTMENT MANAGEMENT, LLC63,604$10,596
Retirement Systems of Alabama63,505$10,406
Russell Investments Group, Ltd.58,880$9,648
369 other institutions2,961,564$428,648
Total (469 institutions)61,846,043$9,129,967